Injector.



No. 623,456.A Patented luly |899.

A. FULLER.

NJECTUR.

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vNrriim STATES' PATENT risica.

AL EERT FULLER, OF GUTTENBURG, NET JERSEY.

INJECTOR.

SPECIFICATION forming part of Letters raient No. 628,456, dated July 11, 1899. Applicationfiled December 3,1898. Serial No. 698,146. (No model.)

To all whom, it may concern/.-

Be it known that I, ALBERT FULLER, a citizen of the United States, residing at Guttenburg, Hudson county, in the State of New J ersey, have invented certain new and useful Improvements in Injectors, of which the ,fol-` lowing is a full, clear, and exact specification.

VMy invention relates to improvements in apparatus for superheating air and forcing the same into a furnace to eeet the more perfect combustionof the fuel used therein 5 and my invention has for its object more particularly to provide a simple and efficient apparatus for the purposes above specified whereby it becomes possible to more eifectually superheat the air Aand more fully control or regulate the mixing thereof with steam before the same enters the furnace; and said invention has for its object, further,lto provide an apparatus which may be readily attached to or detached `from the furnace and the source of steam-supply and taken apart to permit of the cleaning thereof, and, finally, to provide an apparatus whereof the vital parts will not be directly exposed to injury by the heat of the furnace. These objects above set forth I am enabled to attain by means of my invention, which consists in the novel details of construction and in the combination, connection, and arrangement of parts hereinafter more fully described and then pointed out in the claim.

In the accompanying drawings, forming part of this specication, wherein like letters of reference indicate like parts, Figure 1 isa longitudinal section taken on the line l `l of Fig. 3, showing an injector constructed accordingtoandembodyingmyinvention. Fig. 2 is a detail top or plan view of the forward portion of the steam-nozzle, showing the;

steam-inlet therein. Fig. 3 is a section taken on the line 3 3 of Fig. l looking in the direction of the arrow, and Fig. 4 is a similar view showing the injector provided with a plurality of air and steam ports.

In said drawings, A designates the injector,

comprising the cylindrical body or outer cas'- ing B, the rear end of which is tapered and terminates in thecylindrical end C, and D denotes a flaring mouth or airport which communicates with the interior of the body or outer casing B.

E denotes a section of ordinary pipe, preferably iron, which is secured to the cylindrical end C and constitutes a continuation thereof which extendstherefrom to the inner surface of the furnace-wall.

In the front end of the body or outer casingB is provided a central threaded opening, andFdenotesaplugorinnercasing,ofsmaller diameter than the interior of the outer casing B, secured in said opening and extending into said outer casing B, said plug F having a tapered inner end, a hexagonal head G at its outer end, and a central longitudinal opening extending entirely through the same, having screw-threads at its forwardend and its middle portion enlarged to form a steamchamber F', provided with an opening, into which is secured a pipe I-I, extending through an opening a. in the outer casing B and communicating with a source of steam-supply, and I denotes a washer or packing disposed upon the plug F intermediate its head G and the end of the outer casing B. .I denotes the steam-nozzle, which works with the plug F and consists of a hollow stem J', provided at its outer projecting end with a hand-wheel .I2 and screw-threads b and to the rear of said screw-threads, in the portion within the steam-chamber F', with one or more slots or steam-ports, as c, and K denotes a nipple which is removably secured to the innerk end of the hollow stem J and provided with a reduced opening CZ.

At Fig. 4 I have shown the injector provided with a plurality of air-ports D and steam-ports c' c', whereby it becomes possible to force a larger volume of air into afurnace. To operate the apparatus, it simply becomes necessary to turn the hand-wheel J2 until the steam-port c in the nozzle J is partly or wholly uncovered within the steam chamber F', whereupon steam will enter the same and thence issue from the opening d in the nipple K and in so doing create a suction whereby air will he drawn into the outer casing B through the port D and become heated in passing over the plug F and the long steamnozzle J, and thence forced into the furnace.

By turning the hand-wheel J2 in the reverse direction until the steam-portcis partly within the tapered end of the plug the quantity of steam admitted to the nozzle can be di- IOO ininished, and by continuing the operation until the screw-threads B on the stem J contact with the inner surface of the rear or tapered end of the plug F the steam may be completely shut oft.

In practice I propose to have the nipple K at theinner end of the nozzle J,When adjusted removable hollow stem secured toits rear end and a screw-threaded opening provided in the front end of said outer casing, an inner casing or steam-chamber of smaller diameter than the outer casing removably secured within the threaded opening in the front end of the outer casing, an opening arranged in the top of said outer casing, a steam-supply pipe extending therethrough and'into the inner cas ing to hold the same in position Within the outer casin g, and a steam-nozzle supported by -the innerfchamber and projecting beyond the ends thereof; said steam-nozzle being provided at its inner end with a removable nipple having a reduced opening therein; adja cent to its forward y ends with screw-threads adapted to Work in the threaded opening in the front end of the inner chamber; intermediate said threaded portion and the nipple, in the portion within the inner steam-chamber, with a longitudinal opening, and at its extreme outer end Witha hand-wheel whereby said steam-nozzle maybe rotated Within.

the inner casing to advance or Withdraw the longitudinal opening therein into or from the solid rear end of the inner steam-chamber, and thereby regulate the admission of steam, substantially as shown and described.

Signed at the city of `New York, in the county and State of New York, lthis 25th day of November, 1898. t

ALBERT FULLER.

Vitnesses:

GUSTAVE DIETERICH,

JOHN KEHLENBECK. 

